CN223379110U - Photovoltaic module brackets and photovoltaic systems - Google Patents

Abstract

The embodiment of the present application provides a photovoltaic module support and a photovoltaic system, wherein the photovoltaic module support comprises: a plurality of support brackets, wherein the plurality of support brackets are parallel to each other; at least one support beam, wherein the support beam is located between two adjacent support brackets and the support beam is used to set the photovoltaic module; wherein each support beam is provided with a buffer structure, and the buffer structure is used to buffer the pressure exerted on the photovoltaic module. The technical solution of the embodiment of the present application can be achieved by providing a support beam between two adjacent support brackets, and the support beam has a buffer structure, and the buffer structure can be used to buffer the equivalent stress or Mises stress exerted on the glass in the photovoltaic module, thereby reducing the degree of glass deformation, and then improving the pressure bearing capacity of the glass without affecting the light absorption efficiency of the photovoltaic module, thereby effectively improving the problem of glass explosion.

Description

Photovoltaic module support and photovoltaic system

Technical Field

The application relates to the technical field of photovoltaic supports, in particular to a photovoltaic module support and a photovoltaic system.

Background

Photovoltaic power generation is a technology for converting solar energy into electric energy, and a core component of the photovoltaic power generation is a solar panel, which is also called a photovoltaic component. Photovoltaic modules (also known as solar panels) are important components of photovoltaic power generation systems. Generally, a photovoltaic module is disposed on a photovoltaic module holder, and a plurality of photovoltaic module holders supporting the photovoltaic module are arranged in a predetermined array and are electrically connected to form a photovoltaic power generation system. In order to obtain the maximum power output of the whole photovoltaic power generation system, the solar photovoltaic module is arranged in a certain direction and an inclination angle by combining the geography, climate and solar energy resource conditions of a construction site, so that the solar radiation utilization rate is improved.

The main structure of the photovoltaic module comprises glass, EVA adhesive films, battery pieces and a back plate, and the solar photovoltaic module is arranged in an inclined state, is affected by external factors such as wind load and snow load, and can bear certain pressure, so that the glass is burst, and the normal work of the photovoltaic module is affected.

It should be noted that the foregoing is not necessarily prior art, and is not intended to limit the scope of the present application.

Disclosure of utility model

The embodiment of the application provides a photovoltaic module bracket and a photovoltaic system, which are used for solving or relieving one or more of the technical problems.

As a first aspect of an embodiment of the present application, an embodiment of the present application provides a photovoltaic module support, including:

A plurality of support brackets, wherein a plurality of the support brackets are parallel to each other;

The support cross beams are positioned between two adjacent support brackets and are used for arranging photovoltaic modules;

Each supporting beam is provided with a buffer structure, and the buffer structure is used for buffering the pressure born by the photovoltaic module.

Optionally, the buffer structure comprises at least one arch structure, and the top of the arch structure is abutted with the photovoltaic module.

Optionally, when the number of the arch structures is one, two adjacent support brackets are on the same horizontal plane, and the distance between the top of the arch structure and the horizontal plane is greater than 0mm and less than or equal to 25mm.

Optionally, a yielding area is formed between two adjacent support brackets, one end of the support cross beam is connected with one support bracket, and the other end of the support cross beam spans the yielding area and is connected with the other support bracket.

Optionally, each of the supporting beams is respectively and independently arranged perpendicular to the supporting bracket.

Optionally, a junction box is arranged between two adjacent support brackets, and the support cross beam is not contacted with the junction box.

Optionally, the distance between two adjacent supporting beams is 1300-1500 mm.

Optionally, the material of the buffer structure is an elastic material.

Optionally, two mutually parallel support girders; the support brackets are uniformly arranged on the two support main beams at intervals;

One end of the rectangular pipe is connected with one of the supporting main beams, and the other end of the rectangular pipe is connected with the other supporting main beam;

The upright post is provided with one end arranged on a horizontal plane and the other end hinged with the rectangular pipe;

wherein, rectangular pipe with two support girder mutually perpendicular.

As a second aspect of the embodiments of the present application, the embodiments of the present application provide a photovoltaic system, including:

At least one photovoltaic module holder as described above.

The embodiment of the application adopts the technical scheme and can have the following advantages:

Through set up the supporting beam between two adjacent support brackets, and have buffer structure on the supporting beam, buffer structure can be used for buffering the equal stress or Mi Saisi stress that glass received in the photovoltaic module to reduce glass deformation's degree, and then under the prerequisite that does not influence photovoltaic module light absorption efficiency, improve glass's bearing capacity, effectually improved the problem that glass exploded the board.

Drawings

In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.

Fig. 1 is a schematic structural diagram of a photovoltaic module bracket according to an embodiment of the present application.

Fig. 2 is a schematic partial structure of a photovoltaic module bracket according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a supporting beam of the photovoltaic module bracket according to the embodiment of the present application.

Fig. 4 is a schematic diagram of glass stress distribution and total deformation when the supporting bracket in the photovoltaic module bracket provided by the embodiment of the application is an extension bracket and the distance between the top of the arch structure and the horizontal plane is 0mm.

Fig. 5 is a schematic diagram of glass stress distribution and total deformation when the supporting bracket in the photovoltaic module bracket provided by the embodiment of the application is an extension bracket and the distance between the top of the arch structure and the horizontal plane is 25 mm.

Fig. 6 is a schematic diagram of glass stress distribution and total deformation when the distance between the top of the arch structure and the horizontal plane is 0mm, in which the support bracket in the photovoltaic module bracket provided by the embodiment of the application is a common beam bracket.

Fig. 7 is a schematic diagram of glass stress distribution and total deformation when the supporting bracket in the photovoltaic module bracket provided by the embodiment of the application is a common beam bracket and the distance between the top of the arch structure and the horizontal plane is 25 mm.

Reference numerals illustrate:

1. the photovoltaic module comprises a support bracket, a support beam, an arch structure, a yielding area and a photovoltaic module.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these exemplary embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1 to 7, in a first aspect, the photovoltaic module support may include:

a plurality of support brackets 1, the plurality of support brackets 1 being parallel to each other;

At least one supporting beam 2, wherein the supporting beam 2 is positioned between two adjacent supporting brackets 1, and the supporting beam 2 is used for arranging a photovoltaic module 3;

Wherein, every supporting beam 2 all is provided with buffer structure, and buffer structure is used for buffering the pressure that photovoltaic module 3 received.

In the embodiment, the supporting cross beams 2 are arranged between two adjacent supporting brackets 1, the supporting cross beams 2 are provided with the buffer structures, and the buffer structures can be used for buffering the equal stress or Mi Saisi stress suffered by glass in the photovoltaic module 3, so that the degree of glass deformation is reduced, the bearing capacity of the glass is improved on the premise that the light absorption efficiency of the photovoltaic module 3 is not affected, and the problem of glass explosion plates is effectively solved. And the supporting cross beam 2 in the embodiment of the application can be used in an extension bracket of a conventional photovoltaic module bracket and also can be applied to a public beam supporting bracket 1.

It should be noted that, in extreme weather, the glass on the photovoltaic module 3 gives equal stress or Mi Saisi stress to the glass due to wind load and snow load, and the photovoltaic module 3 is mainly subjected to equal stress or Mi Saisi stress due to mechanical stress, the front pressure is strongly related to the deformation amount of the glass surface, when the glass is subjected to the front pressure, the deformation amount of the glass has a great influence on stress concentration, and the larger the deformation of the glass is, the larger the deformation amount exceeds the bearable deformation amount of the glass, so that the glass is subjected to hidden cracking or bursting.

In an alternative embodiment, the buffer structure comprises at least one arch 21, the top of the arch 21 being in abutment with the photovoltaic module 3.

In this embodiment, the top of the arch structure 21 is abutted to the photovoltaic module 3, and when the glass in the photovoltaic module 3 is subjected to equal stress or Mi Saisi stress due to wind load and snow load, the arch structure 21 is deformed to buffer the pressure applied to the photovoltaic module 3, so that the condition that the glass bursts due to the pressure is reduced.

In an alternative embodiment, when the number of arches 21 is one, two adjacent support brackets 1 are on the same horizontal plane, the distance between the top of the arch 21 and the horizontal plane is greater than 0mm and less than or equal to 25mm.

In this embodiment, as shown in fig. 4-5, when the support bracket 1 is an extension bracket and the distance between the top of the arch structure 21 and the horizontal plane is 0mm, that is, when the support beam 2 is a linear beam, the equivalent stress or Mi Saisi stress of the glass of the photovoltaic module 3 is 135.3Mpa, the maximum deformation amount of the middle position of the glass is 70.7mm, and when the distance between the top of the arch structure 21 and the horizontal plane is 25mm, the equivalent stress or Mi Saisi stress of the middle position of the glass of the photovoltaic module 3 is 98Mpa, the maximum deformation amount of the middle position of the glass is 40mm, and according to calculation, when the distance between the top of the arch structure 21 and the horizontal plane is 25mm, compared with the linear beam, the equivalent stress or Mi Saisi stress of the glass in the photovoltaic module 3 is reduced by 27%, and the deformation amount of the glass is reduced by 40%, thus greatly reducing the problem of glass bursting;

As shown in fig. 6-7, when the supporting bracket 1 is a common beam bracket and the distance between the top of the arch structure 21 and the horizontal plane is 0mm, namely, when the supporting beam 2 is a linear beam, the equal stress or Mi Saisi stress of the glass of the photovoltaic module 3 is 407.11Mpa, the maximum deformation of the middle position of the glass is 177.69mm, and when the distance between the top of the arch structure 21 and the horizontal plane is 25mm, the equal stress or Mi Saisi stress of the middle position of the glass of the photovoltaic module 3 is 325.47Mpa, the maximum deformation of the middle position of the glass is 40.733mm, and when the distance between the top of the arch structure 21 and the horizontal plane is 25mm, compared with the linear beam, the equal stress or Mi Saisi stress of the glass in the photovoltaic module 3 is reduced by 20%, the deformation of the glass is reduced by 70%, and the problem of glass bursting is greatly reduced;

Therefore, when the distance between the top of the arch structure 21 and the horizontal plane is greater than 0mm and less than or equal to 25mm, the bearing capacity of the glass is improved on the premise that the light absorption efficiency of the photovoltaic module 3 is affected, and the technical problems of glass explosion caused by extreme weather conditions such as wind load and snow load are effectively solved.

In an alternative embodiment, a yielding area 22 is formed between two adjacent support brackets 1, one end of the support beam 2 is connected with one support bracket 1, and the other end spans the yielding area 22 and is connected with the other support bracket 1.

In this embodiment, the supporting beam 2 spans the yielding area 22 and is connected with the two supporting brackets 1 by beams, so that the buffering structure of the supporting beam 2 plays a role in buffering the photovoltaic module 3 in the whole yielding area 22, thereby improving the overall buffering force of the glass in the photovoltaic module 3 and further reducing the cracking condition of the glass due to the front pressure.

In an alternative embodiment, each support beam 2 is arranged perpendicular to the support frame 1, respectively and independently.

In this embodiment, the photovoltaic module 3 has no buffer supporting point in the whole yielding area 22, and the photovoltaic module 3 is arranged on the supporting beam 2, and the supporting beam 2 is respectively and independently arranged perpendicular to the supporting bracket 1, so that the buffer strength of glass in the photovoltaic module 3 is improved on the premise that the installation stability of the photovoltaic module 3 is higher, and the problem of glass explosion plates is effectively improved.

In an alternative embodiment, there is a junction box between two adjacent support brackets 1, with the support beam 2 not in contact with the junction box.

In the present embodiment, the supporting beam 2 is not in contact with the junction box, and the influence of the arrangement of the supporting beam 2 on the junction box is reduced.

In an alternative embodiment, the distance between two adjacent support beams 2 is 1300-1500 mm, for example 1300mm, 1400mm, 1500mm.

In the embodiment, when the distance between the two supporting beams 2 is greater than 1500mm, the supporting area of the photovoltaic module 3 is reduced, so that the middle part of the photovoltaic module 3 is stressed unevenly and is easy to bend or sink due to equal stress or Mi Saisi stress, thereby increasing the risk of glass breakage, especially under the condition of external load (such as wind pressure or snow), and in addition, the overall rigidity of the photovoltaic module bracket is weakened, the wind resistance is reduced, and the photovoltaic system is more easy to generate structural deformation or damage under the strong wind condition;

When the distance between the two supporting beams 2 is smaller than 1300mm, more supporting beam 2 material is needed to buffer the equivalent stress or Mi Saisi stress to which the photovoltaic module 3 is subjected, which increases the cost of the photovoltaic system, especially in the case of large-scale installation, and the too small distance between the supporting beams 2 can limit the installation space of the module, increase the complexity of the installation process, and increase the labor cost and the time cost;

Therefore, when the distance between two adjacent supporting beams 2 is 1300-1500 mm, the stability and the efficiency of the photovoltaic system are ensured, the wind load resistance and the snow load resistance of the photovoltaic module 3 are improved, and the bursting condition of glass in the photovoltaic module 3 due to pressure is reduced,

In an alternative embodiment, the material of the cushioning structure is an elastic material.

In this embodiment, the buffer structure made of the elastic material can buffer the pressure applied to the glass in the photovoltaic module 3 by deforming, so that the risk of bursting of the glass due to the pressure is effectively reduced.

In an alternative embodiment, two parallel support girders are provided, a plurality of support brackets 1 are evenly arranged on the two support girders at intervals;

One end of the rectangular pipe is connected with one of the supporting main beams, and the other end of the rectangular pipe is connected with the other supporting main beam;

One end of the upright post is arranged on the horizontal plane, and the other end of the upright post is hinged with the rectangular pipe;

Wherein, rectangular pipe and two support girder mutually perpendicular.

Embodiments of the present application may provide a photovoltaic system comprising at least one photovoltaic module support according to any of the embodiments above. The photovoltaic module support has the advantages that the photovoltaic system also has, and the description is omitted here. The photovoltaic system has wide application fields, and is not limited to photovoltaic power stations, such as ground power stations, roof power stations and water surface power stations, but also comprises various devices and apparatuses for generating power by utilizing solar energy, such as a user solar power supply, a solar street lamp, a solar automobile, a solar building and the like. Of course, it is understood that the application scenario of the photovoltaic system is not limited thereto, that is, the photovoltaic system may be applied to all fields where solar energy is required to generate electricity. Taking a photovoltaic power generation system network as an example, the photovoltaic system can comprise a photovoltaic array, a confluence box and an inverter, wherein the photovoltaic array can be an array combination of a plurality of photovoltaic modules 3, for example, the photovoltaic modules 3 can form a plurality of photovoltaic arrays, the photovoltaic arrays are connected with the confluence box, the confluence box can confluence currents generated by the photovoltaic arrays, and the confluence currents flow through the inverter to be converted into alternating currents required by a mains supply network and then are connected into the mains supply network to realize solar power supply.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

For convenience of description, orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom" refer to orientation or positional relationship generally based on the orientation or positional relationship shown in the drawings, and for convenience of description and simplification of the description, these orientation words do not indicate or imply that the apparatus or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore are not to be construed as limiting the scope of protection of the application, and orientation words "inside and outside" refer to inside and outside relative to the outline of the respective element itself. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or in communication, directly connected, or indirectly connected through an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both first and second features being in direct contact, and may also include both first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should also be noted that references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application as broadly described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

It should be noted that the foregoing is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present application.

Claims (9)

1. A photovoltaic module bracket, comprising:

a plurality of support brackets (1), wherein the support brackets (1) are parallel to each other;

The photovoltaic module comprises at least one supporting beam (2), wherein the supporting beams (2) are positioned on two adjacent supporting brackets (1), and the supporting beams (2) are used for arranging photovoltaic modules (3);

Each supporting beam (2) is provided with a buffer structure, and the buffer structures are used for buffering the pressure born by the photovoltaic module (3);

And a yielding area (22) is formed between two adjacent support brackets (1), one end of the support cross beam (2) is connected with one support bracket (1), and the other end of the support cross beam spans the yielding area (22) and is connected with the other support bracket (1).

2. The photovoltaic module holder according to claim 1, wherein,

The buffer structure comprises at least one arch structure (21), and the top of the arch structure (21) is abutted with the photovoltaic module (3).

3. The photovoltaic module holder according to claim 2,

When the number of the arch structures (21) is one, two adjacent support brackets (1) are positioned on the same horizontal plane, and the distance between the top of each arch structure (21) and the horizontal plane is more than 0mm and less than or equal to 25mm.

4. The photovoltaic module holder according to claim 1, wherein,

Each supporting beam (2) is respectively and independently arranged perpendicular to the supporting bracket (1).

5. The photovoltaic module holder according to claim 1, wherein,

A junction box is arranged between two adjacent support brackets (1), and the support cross beam (2) is not contacted with the junction box.

6. The photovoltaic module holder according to claim 1, wherein,

The distance between two adjacent supporting beams (2) is 1300-1500 mm.

7. The photovoltaic module holder according to claim 1, wherein,

The material of the buffer structure is an elastic material.

8. The photovoltaic module bracket of claim 1, further comprising:

The support brackets (1) are uniformly arranged on the two support girders at intervals;

One end of the rectangular pipe is connected with one of the supporting main beams, and the other end of the rectangular pipe is connected with the other supporting main beam;

The upright post is provided with one end arranged on a horizontal plane and the other end hinged with the rectangular pipe;

wherein, rectangular pipe with two support girder mutually perpendicular.

9. A photovoltaic system, comprising:

at least one photovoltaic module holder according to any one of claims 1 to 8.